Lean Engineer

About the role

Resolution is looking for a Lean Engineer to lead the organization’s effort in scaling Lean formalization across research teams. You will work closely with researchers and engineers to create reliable, AI‑assisted workflows for large‑scale theorem proving.

Key responsibilities

• Champion Lean and autoformalization practices throughout the company.
• Design and maintain proof harnesses, code‑review workflows, and shared Lean libraries.
• Consolidate overlapping formalizations, resolve inconsistent definitions, and build reusable foundations.
• Improve reliability, maintainability, and performance of shared Lean projects.
• Support researchers in developing custom tools, tactics, and workflows, heavily assisted by AI agents.

Required profile

• Several years of experience writing Lean and using mathlib.
• Strong background in mathematics or theoretical computer science (at least a Bachelor’s).
• Passion for AI alignment and willingness to work with AI‑generated Lean code.
• Clear communicator who enjoys collaborating with researchers and engineers.

Required skills

• Lean theorem prover.
• Mathlib library.
• AI autoformalization tools.
• Lean tooling, tactic development, metaprogramming, or proof automation.

What we offer

• Competitive salary levels ranging from $208,000 to $930,000 depending on seniority.
• Five weeks paid vacation plus public holidays, comprehensive medical/dental/vision insurance.
• Unlimited sick leave and unconditional 4% 401(k) contribution.
• Full‑time onsite role in Berkeley with remote work considered in exceptional cases.